ZyXEL Communications PMG1005-T20B User Manual page 23

That way if you later misconfigure the GPON Device, you can upload the backed up configuration file
to return to your previous settings. You can alternately upload the factory default configuration file if you
want to return the GPON Device to the original default settings. The firmware determines the GPON
Device's available features and functionality.
Follow the instructions in this screen to upload firmware to your GPON Device. The upload process uses
HTTP (Hypertext Transfer Protocol) and may take up to two minutes. After a successful upload, the
system will reboot automatically.
Click Maintenance > Firmware to open the following screen.
Figure 13 Maintenance > Firmware
The following table describes the labels in this screen.
Table 10 Maintenance > Firmware
LABEL DESCRIPTION
Firmware Select the romfile radio button to restore a backed-up configuration file to return to the GPON
Upgrade Device.
Select the FW radio button to load a previously downloaded firmware to the GPON Device.
New Firmware Type in the location of the file you want to upload in this field or click Browse... to find it.
Location
Browse... Click Browse... to find the .bin or .rom configuration file you want to upload. Remember that
you must decompress compressed (.zip) files before you can upload them.
ROMFILE BACKUP Click ROMFILE BACKUP to save the GPON Device's current configuration to your computer.
UPGRADE Click UPGRADE to begin the upload a new firmware (FW) or configuration file (romfile). This
process may take up to two minutes.
Do NOT turn off the GPON Device while a firmware upload is in progress!
After you see File upload succeeded, starting flash erasing and programming!! in the screen, wait three
minutes before logging into the GPON Device again.
The GPON Device automatically restarts in this time causing a temporary network disconnect.
After two minutes, log in again and check your new firmware version in the Device Info screen.
If the upload was not successful, an error message appears.
Chapter 6 Maintenance
PMG1005-T20B User's Guide
23